2 ms·
> There has never been herd immunity for polio, measles, or even for chicken pox. I think you've got a selection bias there. Those illnesses are household nam
by catalogia 6y ago
> There has never been herd immunity for polio, measles, or even for chicken pox.
I think you've got a selection bias there. Those illnesses are household names because they are/were so prevalent. But what of the illnesses that never became prevalent enough to become household names because populations developed immunity fast enough to suppress the spread?
- xyzzy_plugh 6y agoWhat's the last illness that never became prevalent enough to become a household name because populations developed immunity fast enough to suppress the spread? I can't think of any.